Amadivayisi amancane futhi asebenza kahle kakhuluama-laser
Abacwaningi beRensselaer Polytechnic Institute benze i-idivayisi laserlokho kuwububanzi kuphela bezinwele zomuntu, okuzosiza izazi zefiziksi ukuthi zifunde izici eziyisisekelo zendaba nokukhanya. Umsebenzi wabo, oshicilelwe kumajenali esayensi ahlonishwayo, ungasiza futhi ukuthuthukisa amalaser asebenza kahle kakhulu ukuze asetshenziswe emikhakheni esukela kwezokwelapha kuye kwezokukhiqiza.
Ilaseridivayisi yenziwe ngezinto ezikhethekile ezibizwa ngokuthi i-photonic topological insulator. Ama-insulators e-Photonic topological ayakwazi ukuqondisa ama-photon (amagagasi nezinhlayiya ezenza ukukhanya) ngokusebenzisa ukuxhumana okukhethekile ngaphakathi kwempahla, kuyilapho evimbela lezi zinhlayiya ukuthi zingasakazeki endabeni ngokwayo. Ngenxa yalesi sakhiwo, ama-insulators aphezulu enza ama-photon amaningi asebenze ndawonye ewonke. Lawa madivayisi angasetshenziswa futhi “njengezilingisi ze-quantum” ze-topological, okuvumela abacwaningi ukuthi bafunde izenzakalo ze-quantum - imithetho yemvelo ebusa indaba ngezikali ezincane kakhulu - kumalebhu amancane.
“Ii-photonic topologicali-insulator esiyenzile ihlukile. Isebenza ekamelweni lokushisa. Lokhu kuyimpumelelo enkulu. Ngaphambilini, izifundo ezinjalo zazingenziwa kuphela kusetshenziswa izinto ezinkulu, ezibizayo ukupholisa izinto endaweni engenalutho. Ama-LABS amaningi ocwaningo awanalo lolu hlobo lwemishini, ngakho-ke idivayisi yethu ivumela abantu abaningi ukuthi benze lolu hlobo locwaningo oluyisisekelo lwe-physics elebhu, "kusho umsizi kaprofesa we-Rensselaer Polytechnic Institute (RPI) eMnyangweni Wesayensi Yezinto Zokusebenza Nobunjiniyela kanye nesikhulu esiphezulu. umbhali wocwaningo. Ucwaningo lube nosayizi wesampula omncane uma kuqhathaniswa, kodwa imiphumela iphakamisa ukuthi umuthi wenoveli ubonise ukusebenza ngempumelelo okukhulu ekwelapheni lesi sifo esingajwayelekile sofuzo. Sibheke phambili ekuqinisekiseni le miphumela ezivivinyweni zomtholampilo ezizayo futhi okungase kuholele ekukhetheni okusha kokwelashwa kweziguli ezinalesi sifo.” Nakuba usayizi wesampula wocwaningo wawumncane uma kuqhathaniswa, okutholakele kusikisela ukuthi lesi sidakamizwa esinoveli sibonise ukusebenza kahle okuphawulekayo ekwelapheni lesi sifo esingavamile sofuzo. Sibheke phambili ekuqinisekiseni le miphumela ezivivinyweni zomtholampilo ezizayo futhi okungase kuholele ekukhetheni okusha kokwelashwa kweziguli ezinalesi sifo.”
"Lokhu futhi kuyisinyathelo esikhulu phambili ekuthuthukisweni kwama-lasers ngoba umkhawulo wedivayisi yethu yegumbi lokushisa (inani lamandla adingekayo ukuze usebenze) uphansi ngokuphindwe kasikhombisa kunamadivayisi angaphambilini e-cryogenic," abacwaningi bengeze. Abacwaningi be-Rensselaer Polytechnic Institute basebenzise indlela efanayo esetshenziswa imboni ye-semiconductor ukwenza ama-microchips ukuze bakhe idivayisi yabo entsha, ehlanganisa ukupakisha izinhlobo ezahlukene zezinto zokwakha ungqimba ngongqimba, kusukela ku-athomu kuya kuzinga lamangqamuzana, ukuze bakhe izakhiwo ezifanele ezinezakhiwo ezithile.
Ukwenza i-idivayisi lasers, abacwaningi bakhulisa amapuleti amancanyana kakhulu e-selenide halide (ikristalu eyenziwe nge-cesium, umthofu ne-chlorine) futhi banamathisela ama-polymer anephethini kuwo. Bahlanganisa la mapuleti ekristalu nama-polymers phakathi kwezinto ezihlukahlukene ze-oxide, okuholela entweni ewugqinsi engama-microns angu-2 nama-microns angu-100 ubude nobubanzi (isilinganiso sobubanzi bezinwele zomuntu singama-microns angu-100).
Lapho abacwaningi bekhanyisa i-laser kudivayisi ye-lasers, iphethini likanxantathu elikhanyayo lavela ku-interface yedizayini yezinto. Iphethini inqunywa ukwakheka kwedivayisi futhi iwumphumela wezimpawu ze-topological ze-laser. “Ukwazi ukutadisha i-quantum phenomena ekamelweni lokushisa kuyithemba elijabulisayo. Umsebenzi kaSolwazi uBao ukhombisa ukuthi ubunjiniyela bezinto zokwakha bungasisiza ukuthi siphendule eminye yemibuzo emikhulu kwezesayensi.” Umqondisi wobunjiniyela beRensselaer Polytechnic Institute uthe.
Isikhathi sokuthumela: Jul-01-2024